JPH02122676U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view showing the vicinity of the raceways of the outer rotor 1 and the inner rotor 3 according to an embodiment of the present invention;
FIG. 2 is a perspective view of the vertical full-rotation hook 5 comprising the outer hook 1 and inner hook 3 shown in FIG. 1, and FIG. 3 is a cross-sectional view of a typical prior art. 1...Outer hook, 2...Rail groove, 2a, 2b, 2c
...Sliding surface, 3...Inner hook, 4...Rail, 4a,
4b, 4c...outer surface, 10...coating layer, δ0,
δ1, δ2, δ3...interval, 20...inner circumferential surface of outer hook 1, 21...concave groove, 22...outer circumferential surface of outer hook 3.

Claims (1)

[Claims for Utility Model Registration] A groove extending in the circumferential direction is formed on the inner circumferential surface of the outer hook, and a coating layer made of a porous synthetic resin material is formed within the groove, and this coating layer: first and second sliding surfaces that face each other in parallel in a virtual plane perpendicular to the axis of the outer hook; It has a third sliding surface formed coaxially with the axis of the hook, and these first to third sliding surfaces constitute a raceway groove, into which the raceway of the inner hook fits. The distance δ1 between the third sliding surface of the track groove and the outer surface of the rail in the open state is selected to be smaller than the distance δ0 between the inner circumferential surface of the outer hook and the outer circumferential surface of the inner hook, and the coating layer A rotating hook characterized by being impregnated with lubricating oil.